1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Horizontal Plane

  1. Mar 6, 2008 #1
    1. The problem statement, all variables and given/known data
    A plane travelling horizontally passes overhead at a height h at t=0. at time t=t1 a sonic boom i heard.

    b.) Determine the speed of the Plane


    Ma=1/sin(arctan h/vt)

    I think i've done it correct up to this point....
    Do i have to find the sin of (arctan h/vt) which is h/vt/ SQRT(h^2-vt^2)..... ???? i dont know how to solve for V ... any help would be appreciated thank you

    2. Relevant equations

    3. The attempt at a solution
  2. jcsd
  3. Mar 6, 2008 #2


    User Avatar
    Science Advisor
    Homework Helper

    You really don't need any angles. Draw the right triangle at time t1. The two sides are h and v*t1. If c is the speed of sound then the hypotenuse is c*t1. Use the pythagorean theorem and solve for v1. The problem is simpler than you think.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook